*{
            padding: 0;
            margin: 0;
        }
        ul,li{
            list-style: none;
        }
        .nav-btn{
            position: relative;
        }
        .nav-btn h2{
            height: 60px;
            line-height: 60px;
            width: 130px;
            text-align:center;
            background: #ff0;
        }
       